^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Some non-inline ceph helpers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/ceph/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * return true if @layout appears to be valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) int ceph_file_layout_is_valid(const struct ceph_file_layout *layout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) __u32 su = layout->stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) __u32 sc = layout->stripe_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) __u32 os = layout->object_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* stripe unit, object size must be non-zero, 64k increment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) if (!su || (su & (CEPH_MIN_STRIPE_UNIT-1)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) if (!os || (os & (CEPH_MIN_STRIPE_UNIT-1)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /* object size must be a multiple of stripe unit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) if (os < su || os % su)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* stripe count must be non-zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) if (!sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) void ceph_file_layout_from_legacy(struct ceph_file_layout *fl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct ceph_file_layout_legacy *legacy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) fl->stripe_unit = le32_to_cpu(legacy->fl_stripe_unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) fl->stripe_count = le32_to_cpu(legacy->fl_stripe_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) fl->object_size = le32_to_cpu(legacy->fl_object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) fl->pool_id = le32_to_cpu(legacy->fl_pg_pool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (fl->pool_id == 0 && fl->stripe_unit == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) fl->stripe_count == 0 && fl->object_size == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) fl->pool_id = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) void ceph_file_layout_to_legacy(struct ceph_file_layout *fl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct ceph_file_layout_legacy *legacy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) legacy->fl_stripe_unit = cpu_to_le32(fl->stripe_unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) legacy->fl_stripe_count = cpu_to_le32(fl->stripe_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) legacy->fl_object_size = cpu_to_le32(fl->object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) if (fl->pool_id >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) legacy->fl_pg_pool = cpu_to_le32(fl->pool_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) legacy->fl_pg_pool = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) int ceph_flags_to_mode(int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #ifdef O_DIRECTORY /* fixme */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if ((flags & O_DIRECTORY) == O_DIRECTORY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return CEPH_FILE_MODE_PIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) switch (flags & O_ACCMODE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) case O_WRONLY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) mode = CEPH_FILE_MODE_WR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) case O_RDONLY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) mode = CEPH_FILE_MODE_RD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) case O_RDWR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) case O_ACCMODE: /* this is what the VFS does */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) mode = CEPH_FILE_MODE_RDWR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #ifdef O_LAZY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (flags & O_LAZY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) mode |= CEPH_FILE_MODE_LAZY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int ceph_caps_for_mode(int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) int caps = CEPH_CAP_PIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (mode & CEPH_FILE_MODE_RD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) caps |= CEPH_CAP_FILE_SHARED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (mode & CEPH_FILE_MODE_WR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) caps |= CEPH_CAP_FILE_EXCL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) CEPH_CAP_AUTH_SHARED | CEPH_CAP_AUTH_EXCL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (mode & CEPH_FILE_MODE_LAZY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) caps |= CEPH_CAP_FILE_LAZYIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags